Redhat KVM - PXE Support

I am testing Redhat 6.1 KVM and am trying to build a KVM image using PXE and i have noticed that KVM uses gPXE however my boot environment does not support gPXE. So i need to reconfigure KVM to use etherboot instead of gPXE i have installed the etherboot roms and configured a bridge but when i PXE boot the images do not get an IP address. Has anybody every configured Redhat 6.1 / KVM to work with PXE?